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Description: MATLAB仿真uwb使用bpsk调制解调的发送(TX)和接收(RX)-MATLAB uwb bpsk use of modulation and demodulation of this (TX) and receive (RX)
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Size: 6512 |
Author: 陈陈 |
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Description: matlab 高光谱工具箱，有RX探测，数据降为，全约束的最小二乘分解等算法
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Size: 106031 |
Author: tangxy@bit.edu.cn |
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Description: Models UWB TX and RX using BPSK fifth derivative.
MATLAB Release: R13
Description: This m file models a UWB system using BPSK with the fifth order derivative of the gaussian pulse with correlation receiver and intgrator.
-Models UWB TX and RX using BPSK fifth derivative. MATLAB Release : R13 Description : This file m models a UWB system using BPSK with the fifth order derivative of the Gaussian pulse with correlation receiver and intgrator.
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Size: 5120 |
Author: 王琼 |
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Description: MATLAB仿真uwb使用bpsk调制解调的发送(TX)和接收(RX)-MATLAB uwb bpsk use of modulation and demodulation of this (TX) and receive (RX)
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Size: 6144 |
Author: 陈陈 |
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Description: A system simulation environment in Matlab/Simulink of RFID is constructed in this paper.
Special attention is emphasized on the analog/RF circuit.Negative effects are concerned in the system
model,such as phase noise of the local oscillator,TX-RX coupling,reflection of the environment,
AWGN noise,DC offset,I/Q mismatch,etc.Performance of the whole system can be evaluated by
changing the coding method,parameters of building blocks,and operation distance.Finally,some
simulation results are presented in this paper.
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Size: 2099200 |
Author: liulang |
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Description: 基于OFDM的无线宽带系统仿真It contains mainly two parts, i.e. link-level simulator and system-level simulator.
Link-level simulator focus on a single-cell single-user scenario, where signal is transmitted from tx, and estimated at rx. Comparing the difference in tx/rx signal, the error rate can be found out. The output of the link-level simulator is the BLER/BER vs. SNR mapping table, that can be used for the system-level simulation.
System-level simulator focus on a multi-cell multi-user scenario. For the sake of simplicity, it takes the mapping table aquired in the link-level simulation, measure the actural SNR, and finds the corresponding error rate.-OFDM-based wireless broadband system simulation It contains mainly two parts, ie link-level simulator and system-level simulator.Link-level simulator focus on a single-cell single-user scenario, where signal is transmitted from tx, and estimated at rx . Comparing the difference in tx/rx signal, the error rate can be found out. The output of the link-level simulator is the BLER/BER vs. SNR mapping table, that can be used for the system-level simulation.System- level simulator focus on a multi-cell multi-user scenario. For the sake of simplicity, it takes the mapping table aquired in the link-level simulation, measure the actural SNR, and finds the corresponding error rate.
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Size: 256000 |
Author: zhangli |
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Description: The program simulates alamouti s code with abitrary no.s of rx. Performance analysis can be drawn. (BER vs SNR)
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Size: 2048 |
Author: borizhang |
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Description: 一个UWB仿真程序包，里面包含信号生成，信道模拟，Tx/Rx等模块。M-file
-A UWB simulation package, which contains the signal generation, channel simulation, Tx/Rx modules. M-file
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Size: 89088 |
Author: 王亮 |
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Description: 文件来源： 我的毕设
仿真结果： 在窄带Rayleigh快衰落信道下几种检测方法的误码率性能比较
说 明： 参数tx，rx,L，EbN0可以根据需要更改。
tx，rx是收发天线数，根据需要取值就好了，一般研究2发2收和4发4收
EbN0是信噪比取值范围，根据需要选择吧。取得点多当然算得慢。
L影响结果的波动性和误码率所能达到的下限，L值取得越大图像越接近真实情况。如果 EbN0最大值有20dB那么误码率可以达到10负4次方建议L不低于10000。
使用方法： 把db.m和minnorm.m存进任意文件夹，然后打开matlab，File->Set Path->Add Folder加入 文件夹。在matlab中输入命令db即可
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Size: 5120 |
Author: 恶魔 |
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Description: ofdm信道特性
Channel transmission simulator
Channel transmission simulator
％
％ inputs:
％ sig2 - noise variance
％ Mt - number of Tx antennas
％ Mr - number of Rx antennas
％ x - vector of complex input symbols (for MIMO, this is a matrix, where each column
％ is the value of the antenna outputs at a single time instance)
％ H - frequency selective channel - represented in block-Toeplitz form for MIMO transmission
％ N - number of symbols transmitted in OFDM frame
％
％ outputs:
％ y - vector of channel outputs (matrix for MIMO again, just like x matrix)
％ create noise vector sequence (each row is a different antenna, each column is a
％ different time index) note: noise is spatially and temporally white-channel characteristics of OFDM Channel transmission simulatorChannel transmission simulator inputs: sig2- noise variance Mt- number of Tx antennas Mr- number of Rx antennas x- vector of complex input symbols (for MIMO, this is a matrix, where each column is the value of the antenna outputs at a single time instance) H- frequency selective channel- represented in block-Toeplitz form for MIMO transmission N- number of symbols transmitted in OFDM frame outputs: y- vector of channel outputs (matrix for MIMO again, just like x matrix) create noise vector sequence (each row is a different antenna, each column is a different time index) note: noise is spatially and temporally white
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Size: 1024 |
Author: sunxu |
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Description: ARMA模型建立程序，给出自相关序列，指定ARMA模型的P阶，Q阶参数，得出相应的参数值
function [bq ,ap]=armahat(rx,p,q)-ARMA model for the establishment of procedures, to come from related sequences, designated the P-order ARMA model, Q-order parameters, the corresponding parameter values derived function [bq, ap] = armahat (rx, p, q)
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Size: 1024 |
Author: 赵慧羲 |
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Description: 此算法使用于单波段或者多波段图像中的非监督异常检测，性能很好~-The algorithm used in single-band or multi-band image unsupervised anomaly detection, performance very good ~
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Size: 1024 |
Author: 朱阳阳 |
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Description: 距离分辨率
thrt0=1*pi/6 斜视角
angb=0.6*lamda/res_a 合成波束宽度
Rr=5000 目标中心到航迹垂直距离
V=100 飞机的航速
Tp=1e-6 脉冲宽度
T=10e-3 脉冲周期
B=0.5*c/res_r 脉冲频宽
Kr=B/Tp 频率调制率
fc=c/lamda 载波频率
Rx=Rr*tan(thrt0) 目标区中心横坐标
R0=Rr*sec(thrt0) 目标区中x心距离
Lc0=1.0*angb*R0 正视有效积累长度
Lc=Lc0*sec(thrt0) 斜视有效积累长度
Tc=Lc/V 相干积累时间
wx=100 场景长度-距离分辨率
thrt0=1*pi/6 斜视角
angb=0.6*lamda/res_a 合成波束宽度
Rr=5000 目标中心到航迹垂直距离
V=100 飞机的航速
Tp=1e-6 脉冲宽度
T=10e-3 脉冲周期
B=0.5*c/res_r 脉冲频宽
Kr=B/Tp 频率调制率
fc=c/lamda 载波频率
Rx=Rr*tan(thrt0) 目标区中心横坐标
R0=Rr*sec(thrt0) 目标区中x心距离
Lc0=1.0*angb*R0 正视有效积累长度
Lc=Lc0*sec(thrt0) 斜视有效积累长度
Tc=Lc/V 相干积累时间
wx=100 场景长度
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Size: 2048 |
Author: wan |
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Description: This a simple position location algorithm using Least Square Estimation algorithm. Timing information is time of flight (TOA) of signal between Tx and Rx. This code generally describes the Positioning method, Also it plots final coordinate of node in 2D. All other information was inlcuded as comments in source code.-This is a simple position location algorithm using Least Square Estimation algorithm. Timing information is time of flight (TOA) of signal between Tx and Rx. This code generally describes the Positioning method, Also it plots final coordinate of node in 2D. All other information was inlcuded as comments in source code.
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Size: 2048 |
Author: |
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Description: OFDM链路级的仿真器场景是单小区单用户，信号从发送端发送，在接收端进行信号估计。估计误差可以从接收和发送信号的不同得到。仿真器的输出是BLER/BER vs SNR。-OFDM Link-level simulator focus on a single-cell single-user scenario, where signal is transmitted from tx, and estimated at rx. Comparing the difference in tx/rx signal, the error rate can be found out. The output of the link-level simulator is the BLER/BER vs. SNR mapping table。
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Size: 160768 |
Author: apple |
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Description: Simulation of a baseband QPSK mod/demod:
TX : a pseudo random bit stream generation, Serial to parallel conversion, QPSK Mapping (Gray coding), Signal power computation
Channel : AWGN channel
RX: Soft Demapping / Hard Demapping, Plot constellations, Compute BER-Simulation of a baseband QPSK mod/demod:
TX : a pseudo random bit stream generation, Serial to parallel conversion, QPSK Mapping (Gray coding), Signal power computation
Channel : AWGN channel
RX: Soft Demapping/Hard Demapping, Plot constellations, Compute BER
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Size: 4096 |
Author: IMM |
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Description: BPSK RX and TX used in cdma technology.
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Size: 2048 |
Author: Himadri |
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Description: SKYPLOT for a given receiver position
Y=skyplot(X,PRN,C,O) draws the skyplot for the receiver position. The
required inputdata for the calculation of the skyplot X is N-by-3*M matrix,
where N are the timesteps and M is the number of the Satellites. The 1st
colomn is the elevation, the second colomn the azimuth and the 3rd colomn
is the geometric distance between sv and rx [° ° m].
The output Y is the same matrix als X, the only difference is that the
satellites below the cutoffangle are marked (number 9999 is written instead
the Elevation, Azimuth and distance.
The numbers of the satellites are listet in the voctor PRN (M-by-1), C is
the cutoffangle for the satellite elevation (default = 5°). The skyplot
displays only satellites who are visible for more then 10 times.- SKYPLOT for a given receiver position
Y=skyplot(X,PRN,C,O) draws the skyplot for the receiver position. The
required inputdata for the calculation of the skyplot X is N-by-3*M matrix,
where N are the timesteps and M is the number of the Satellites. The 1st
colomn is the elevation, the second colomn the azimuth and the 3rd colomn
is the geometric distance between sv and rx [° ° m].
The output Y is the same matrix als X, the only difference is that the
satellites below the cutoffangle are marked (number 9999 is written instead
the Elevation, Azimuth and distance.
The numbers of the satellites are listet in the voctor PRN (M-by-1), C is
the cutoffangle for the satellite elevation (default = 5°). The skyplot
displays only satellites who are visible for more then 10 times.
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Size: 2048 |
Author: Anuron |
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Description: 该模型实现了一个通用的OFDM TX和RX，这是不依赖于任何特定的行业标准。该模型的目标是开发和研究不断（不是“突发”）载波同步和定时跟踪方案。该技术纳入然后可以扩展和修改，以标准的具体通讯套件。该模型采用了“收购”技术，它利用了循环前缀相关属性，以赶在试图完成罚款跟踪算法一帧的边界粗略的估计。该模型实现了一个16点64循环前缀的OFDM载波波形。在OFDM符号有16个飞行员，3后卫音（0，带边幅），并使用45 QAM的剩余数据流4。
这包括最新型的衰落信道，误码率计算，并改善控制回路动态。-This model implements a generic OFDM TX and RX, which is not tied to any particular industry standard. The objective of this model is to develop and explore a continuous (not “bursty”) carrier and timing tracking synchronization scheme. The techniques incorporated can then be extended and modified to suite specific communications standards. The model uses an “acquisition” technique that exploits the correlation properties of the cyclic prefix to get a rough estimate of the frame boundary before attempting to accomplish the fine tracking algorithms. The model implements a 64 carrier OFDM waveform with a 16 point cyclic prefix. The OFDM symbol has 16 pilots, 3 guard tones (0 amplitude at band edge) and uses 4 QAM for the 45 remaining data streams.
This latest model includes a fading channel, BER computation, and improved control loop dynamics.
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Size: 293888 |
Author: zaaa |
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Description: ofdm matlab code rx function of main program
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Size: 5120 |
Author: sadegh gol
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